Chimney construction



' c. c. DROEGER f CHIMNEY CONSTRUCTION Filed May i, 1946 Dec? 7, 1948.

.JAMin/mw M ww f INVENToR.'

CARL GDM/stew?, BY: v

Y ATTORNEY Patented Dec. 7, 1948 1 2,455,57r" n Y i eHIMNEMCoNsTRUCTIoNcerro'. Droegerforennela; Ina.,

main `fiuepcomprisingwa columnvof` superposedff sections, is surroundedfind-Len'ciosedawin/i` fa: secondf imetrally" spacedz-,from'r he,rst'columnitof provid-ef an insulating.l chamber' which; n manyy :ormayrnots beipackedfwith,wheat:insuiatirrgnrraterial..

I i recognizell the fanti that-xthe` broad e,idear of!y suchs;chimneysr'is` noti new; Sfr-have: prowidedrariou' deL-" tails ofconstruction which i: facilitator'V erection;- 1 u or improve stability,or reducesthefcosirrclsuchvl devices; orsi resulto imxaf:ycrlnnlslinaftion"ffof such adrantagesaw: o o

To `tthe accomplishment: ofi their@ above land re@` thecfiormsfustrateds: ingsf;` attention iloeingfK iltheiaccompanyingfdraw vcollecti ,tof the; fact) l how-evergf i than:`thefdrawingsareillustrativeonlyg anditl'iat`A changefma'yf-he madefinithe:rspeciiicconstruotionsi illustrated and: described;'vso` longf`as the scope of-A ftlfie:y appended: 'claimss is not: violated".`

ltisia,` fragmentary perspective view off f upperend-1ofi'archiinneyfcbnstruotedfn accordance 1 portion-,of a'zchimneyembodyingfm "'nvlention;

Fig-. 31 ist an fragmentary-'verme Fsectionw of-""a constructionaldetailagandl'lr i i l Figsmie andrr are Mewssirnilnr"to` Fig? 3l butshowing urtiien modifiedstructures? superposeclzl` tubular" sectionsI'Ul 1201", arranged tof denne main vfluerlllli Surrounding thecolumn-lof sections: 10; and? I'0"1 is a: second column obsectfionsgwo`which fragments'` of sectionsWI-Z and` |21?A are showniwThe-sltwocolumnszdenetherebetween a: chambere lifwliich;mayA constitute.'`

a i dead air spacci or which-)moy bei packed? with" 1 suitably-iassociated@Wit.f thesections oi` `their, inner column: larefiprovided,joint n elementsq indi-rcated:igenorallyvbythea-reference:numeral IJ. Ifdesired'gi.; one:A of; itheseselements` l1 may be asso-fn column, n onthe elements" 4I 'le may be i associated:y withlselected` spacedadjacents` pairslf` of` iiuefI sections; i

i Each-element I l comprises ia collan'which may sepa'iat'elE plates-Iindividually: onsociated with,` the i separatori/Valls oizthe'sectionsfi Eachl part oi each collar includes van upperportion i lf-iedapted,to`r engagefsnugiy theouter wall-oiE theflower ends` ltof a section, forinstance-Hwy. aucoplanarportiombe arrangedA` to rprovidei for] a ow?therethm'zugh.` 1 oi. cool-ing fair. i

The: inner column.` y will' be: Tor.` slightly Y greaterf height-thanthe f outer.:I column, and- I` have shown endfoithe uppermost `sectionofthe outer coluinrr` andawr reduced` portion 'litior adapted-to ,isleeve over l the upper `ends-oi the: uppermost section-Hoi?` theirinvention; L.

I Siadaiptedto `engage snuglythe outer walli-'of an immediately;suhja'centt section; I1; for instanoeo |10 i endian-intermediate,inwardlywreverselybent por-va tionf 210; projecting: substantiallyperpendicularlyY i from the'tcommon plane-of the-portions lili` andi:

I9', anun` defining,` anfoutvvardiyl opening channel; 2 haThefintermediate? portion; 2010i cacho-part off the lelement` i I-'l istimprisoned between the adja-` i cent endsw-ofthefassociatedcolumnsections; and` preferabl-yfthechannel Ziitwill; in each instance;`receive a1fi-ller2f2 of suitable compressiblefmaterial.` f Itwill,berclear'` thatthe elements `Il "will" act-ass expansionwjoints. Alsimilarjointlfelement"23` is. associatediwitiradjacent vsectionswH ofrthe outer. "column: EnclnV element2u3'icomprises :an upper portion:2d=` snugly f `engzrgirigthe1vinnen Wallll-of'fone section, for

stance l2', of the outer column; a copla-narr-I portion 25 snuglyengagingthe inner wallfof` a'n iminedieta-3157i` Subj acent"section:`of'ii that? f column,

for: :instance ft2; and ani lintermediatey `outwardlyi` reversely' bentIportion i 26;` :defining` an inwardlyw openingfwchannel V21%.` Theportion 26% isr iniefl prisoned betweenrrthe `adjacent ends, of the:seca-r" `tions-v lf2 candidi fand. the channel s 2,1 preferably atite-Immer` endfwfith anwoutwardly` oiset iternnnaifff the sections 30and 30', and with a portion 38 intended to be imprisoned between theadjacent ends of sections 32 and 32.

The chamber 33 may, if desired, be packed with any suitable insulatingmaterial, or may be filled with poured concrete.

The structure of Fig. 4 is quite similar to that of Fig. 3. Sections 40and 4U are stacked to dene the main flue 4l', and sections 42 and 42 aresimilarly stacked in surrounding relation to the inner column, to definethe chamber 43. The sections of the inner column are formed at theirlower ends with outwardly oiset terminal anges 44, 'while'the sectionsof the outer column are formed with inwardly offset terminal anges 45.Any suitable form of separator Vmay be interposed between the ends ofadjacent sections.'

For mutually bracing the two columns, the outer walls of the sections 40may be notched at perimetrally spaced points, as at 46, while the innerwalls of the sections 42 may be notched at registering points, as at 41;and tie blocks 48 may be received, and suitably secured, in theregistering pairs of notches.

In Fig. 5, lI have shown sections 50 and 50 corresponding to thesections ID and l' and dening a primary flue i; and sections 52 and 52',corresponding to sections l2 and I2 and defining, with the sections 5I)and 50', a chamber 53. Now the elements, indicated generally by thereference numerals 54 and 56, correspond closely to the elements I1 and23, except that the element 54 is provided, at spaced points about itsperimeter, with outwardly projecting eyelets 55 providing substantiallyvertical openings, while the element 5B is provided, at registeringpoints, with inwardly projecting eyelets 51 providing vertical openings.Tie bars 58, formed with downt'urned terminal portions adapted to be relceived in the eyelets 55 and 51, respectively, provide means formutually bracing the two columns.

I claim as my invention:

1. A chimney construction comprising a c olumn of superposed tubularsections, a second column of superposed sections surrounding andperimetrally spaced from, but enclosing, said rst column, perimetrallycontinuous means having a portion gripped between adjacent surfaces ofadjacent sections of said rst-named column, said means having portionstelescopically engaged with a perimetral surface of each of saidsections, perimetrally continuous means having a portion gripped betweenadjacent surfaces of adjacent sections of said second column and havingportions telescopically engaged with a perimetral surface of each ofsaid sections of said second column, and tie means connectingsaidrst-named means with said second-named means.

2. A chimney construction comprising a column of superposed tubularsections, a second column of superposed sections surrounding andperimetrally spaced from, but enclosing, said first 4 column, andreinforcing means for said construction, associated with certain of saidcolumn sections, each such reinforcing means providing a perimetrallycontinuous band externally embracing the perimetrally outer surface of asection of said first column, a perimetrally continuous plate flxedrelative to said band and gripped between adjacent surfaces of theembraced section and an adjacent section in said column, a perimetrallycontinuous band internally engaging the perimetrally inner surface of asection .of said second column, a perimetrally continuous plate xedrelative to said last-named band and Agripped between adjacent surfacesof the en gaged section and an adjacent section in said second column,and means extended between said bands and providing a bracing connectiontherebetween.

3. A chimney construction comprising a column of superposed tubularelements, a perimetrally continuous member having a portion resting uponthe upper end oi one of said elements, the superjacent element restingupon said member portion and clamping the same in place, and a secondcolumn of superposed tubular elements surrounding and perimetrallyspaced from, but enclosing, said rst column, said mem-` ber having aportion resting upon the upper end of one of the elements of said secondcolumn, and the superjacent element of said second column resting uponsaid last-named member portion and clamping the same in place, saidmember further perimetrally engaginga section of each of said columns.

4. A chimney construction comprising a column of superposed tubularsections, perimetrally-continuous means sleeved upon one of saidsections and having a portion resting upon the upper end of saidsection, the superjacent section resting upon said portion of said meansto clamp the same in place, a second column of tubular sectionssurrounding and perimetrally spaced from, but enclosing, said firstcolumn. and perimetrally-continuous means telescoped within one of saidsections of said second column and having a portion resting upon the'upper end of said last-named section, the superjacent section of saidsecond column resting upon said'portion of said last-named means toclamp the same in place, said perimetrally-continuous means being joinedto brace said two columns.

5. A chimney construction comprising a column of superposed tubularsections, a perimetrally-continuous metal tube having a reversely bentintermediate portion projecting substantially perpendicularly out of thegeneral planes of the perimetral walls of said tube and defining anopen-mouthed channel, said reversely bent intermediate portion beingimprisoned between the adjacent ends of two sections of said column andthe perimetral walls of said tube projecting oppositely' from saidintermediate portion lying in snug contact with the outer walls of saidtwo sections, respectively, a second column of superposed tubularsections surrounding and perimetrally spaced from, but enclosing, saidfirst column, a second metal perimetrally-continuous tube having areversely bent intermediate portion projecting substantiallyperpendicularly out of the general plane of said plate Vand'defining anopen-mounted channel, said reversely bent portion of said second tubebeing imprisoned between the adjacent ends of two sections of saidsecond column and the perimetral walls of said second tube projectingoppositely from said'intermediate portion lying in snug contact with theinner walls of said two sections of said sec.

ond column, respectively and tie means connecting said two metal tubesto provide a bracing connection between said columns.

CARL C. DROEGER.

REFERENCES CITED The following references are of record inthe le of thispatent:

UNITED STATES PATENTS Number

